Public bug reported:

I can create an aarch64 VM but when I go to start the VM I see this
error:

$ virsh start legal-coyote
error: Failed to start domain legal-coyote
error: internal error: cannot load AppArmor profile 
'libvirt-9728b707-1f47-4cd7-a4ca-6eddf5d98d04'

This was on a brand new ubuntu 16.04.4 install.  Below are the steps
that were executed, including what produced there error as well as some
system information.

1. $ sudo apt update && sudo apt upgrade && sudo apt install emacs
libvirt-bin qemu-system-arm qemu-efi

2. Created a VM with MAAS.

3. $ virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     legal-coyote                   shut off

4. $ virsh dumpxml legal-coyote
<domain type='kvm'>
  <name>legal-coyote</name>
  <uuid>9728b707-1f47-4cd7-a4ca-6eddf5d98d04</uuid>
  <memory unit='KiB'>1048576</memory>
  <currentMemory unit='KiB'>1048576</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <os>
    <type arch='aarch64' machine='virt'>hvm</type>
    <loader readonly='yes' type='pflash'>
      /usr/share/AAVMF/AAVMF_CODE.fd
    </loader>
    <nvram>/usr/share/AAVMF/AAVMF_VARS.fd</nvram>
    <boot dev='network'/>
    <boot dev='hd'/>
  </os>
  <features>
    <gic version='3'/>
  </features>
  <cpu mode='host-passthrough'/>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-aarch64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw'/>
      <source 
file='/var/lib/libvirt/maas-images/796e5e0f-ab62-4e44-8189-bbc754635e0b'/>
      <target dev='vda' bus='virtio'/>
      <address type='virtio-mmio'/>
    </disk>
    <controller type='pci' index='0' model='pcie-root'/>
    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
      <model name='i82801b11-bridge'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' 
function='0x0'/>
    </controller>
    <controller type='pci' index='2' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='2'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x01' 
function='0x0'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:00:42:7e:02'/>
      <source network='default'/>
      <model type='virtio'/>
      <address type='virtio-mmio'/>
    </interface>
    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
  </devices>
</domain>

5. $ virsh start legal-coyote
error: Failed to start domain legal-coyote
error: internal error: cannot load AppArmor profile 
'libvirt-9728b707-1f47-4cd7-a4ca-6eddf5d98d04'

6. Checking dmesg...
[  726.425389] virbr0: $ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.4 LTS
Release:        16.04
Codename:       xenialport 1(virbr0-nic) entered listening state
[  726.425419] virbr0: port 1(virbr0-nic) entered listening state
[  727.959553] virbr0: port 1(virbr0-nic) entered disabled state
[  896.933127] audit: type=1400 audit(1526946784.127:18): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9083/auxv" pid=9083 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
[  896.933169] audit: type=1400 audit(1526946784.127:19): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9083/auxv" pid=9083 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
[  896.933846] audit: type=1400 audit(1526946784.127:20): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9083/auxv" pid=9083 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
[  896.933890] audit: type=1400 audit(1526946784.127:21): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9083/auxv" pid=9083 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
[  896.937130] audit: type=1400 audit(1526946784.131:22): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/var/lib/libvirt/maas-images/796e5e0f-ab62-4e44-8189-bbc754635e0b" 
pid=9083 comm="virt-aa-helper" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
[  943.086388] audit: type=1400 audit(1526946830.280:23): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9174/auxv" pid=9174 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
[  943.086429] audit: type=1400 audit(1526946830.280:24): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9174/auxv" pid=9174 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
[  943.087171] audit: type=1400 audit(1526946830.280:25): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9174/auxv" pid=9174 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
[  943.087214] audit: type=1400 audit(1526946830.280:26): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9174/auxv" pid=9174 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
[  943.090417] audit: type=1400 audit(1526946830.284:27): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/var/lib/libvirt/maas-images/796e5e0f-ab62-4e44-8189-bbc754635e0b" 
pid=9174 comm="virt-aa-helper" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

7. $ dpkg -l | grep libvirt
ii  libvirt-bin                      1.3.1-1ubuntu10.23                         
arm64        programs for the libvirt library
ii  libvirt0:arm64                   1.3.1-1ubuntu10.23                         
arm64        library for interfacing with different virtualization systems

8. $ dpkg -l | grep qemu
ii  ipxe-qemu                        1.0.0+git-20150424.a25a16d-1ubuntu1.2      
all          PXE boot firmware - ROM images for qemu
ii  qemu-block-extra:arm64           1:2.5+dfsg-5ubuntu10.29                    
arm64        extra block backend modules for qemu-system and qemu-utils
ii  qemu-efi                         0~20160408.ffea0a2c-2                      
all          UEFI firmware for virtual machines
ii  qemu-system-arm                  1:2.5+dfsg-5ubuntu10.29                    
arm64        QEMU full system emulation binaries (arm)
ii  qemu-system-common               1:2.5+dfsg-5ubuntu10.29                    
arm64        QEMU full system emulation binaries (common files)
ii  qemu-utils                       1:2.5+dfsg-5ubuntu10.29                    
arm64        QEMU utilities

9. $ dpkg -l | grep apparmor
ii  apparmor                         2.10.95-0ubuntu2.9                         
arm64        user-space parser utility for AppArmor
ii  libapparmor-perl                 2.10.95-0ubuntu2.9                         
arm64        AppArmor library Perl bindings
ii  libapparmor1:arm64               2.10.95-0ubuntu2.9                         
arm64        changehat AppArmor library

10. $ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.4 LTS
Release:        16.04
Codename:       xenial

** Affects: apparmor (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: libvirt (Ubuntu)
     Importance: Undecided
         Status: New

** Also affects: apparmor (Ubuntu)
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to apparmor in Ubuntu.
https://bugs.launchpad.net/bugs/1772538

Title:
  Can't start arm64 VM due to apparmor error.

Status in apparmor package in Ubuntu:
  New
Status in libvirt package in Ubuntu:
  New

Bug description:
  I can create an aarch64 VM but when I go to start the VM I see this
  error:

  $ virsh start legal-coyote
  error: Failed to start domain legal-coyote
  error: internal error: cannot load AppArmor profile 
'libvirt-9728b707-1f47-4cd7-a4ca-6eddf5d98d04'

  This was on a brand new ubuntu 16.04.4 install.  Below are the steps
  that were executed, including what produced there error as well as
  some system information.

  1. $ sudo apt update && sudo apt upgrade && sudo apt install emacs
  libvirt-bin qemu-system-arm qemu-efi

  2. Created a VM with MAAS.

  3. $ virsh list --all
   Id    Name                           State
  ----------------------------------------------------
   -     legal-coyote                   shut off

  4. $ virsh dumpxml legal-coyote
  <domain type='kvm'>
    <name>legal-coyote</name>
    <uuid>9728b707-1f47-4cd7-a4ca-6eddf5d98d04</uuid>
    <memory unit='KiB'>1048576</memory>
    <currentMemory unit='KiB'>1048576</currentMemory>
    <vcpu placement='static'>1</vcpu>
    <os>
      <type arch='aarch64' machine='virt'>hvm</type>
      <loader readonly='yes' type='pflash'>
        /usr/share/AAVMF/AAVMF_CODE.fd
      </loader>
      <nvram>/usr/share/AAVMF/AAVMF_VARS.fd</nvram>
      <boot dev='network'/>
      <boot dev='hd'/>
    </os>
    <features>
      <gic version='3'/>
    </features>
    <cpu mode='host-passthrough'/>
    <clock offset='utc'/>
    <on_poweroff>destroy</on_poweroff>
    <on_reboot>restart</on_reboot>
    <on_crash>restart</on_crash>
    <devices>
      <emulator>/usr/bin/qemu-system-aarch64</emulator>
      <disk type='file' device='disk'>
        <driver name='qemu' type='raw'/>
        <source 
file='/var/lib/libvirt/maas-images/796e5e0f-ab62-4e44-8189-bbc754635e0b'/>
        <target dev='vda' bus='virtio'/>
        <address type='virtio-mmio'/>
      </disk>
      <controller type='pci' index='0' model='pcie-root'/>
      <controller type='pci' index='1' model='dmi-to-pci-bridge'>
        <model name='i82801b11-bridge'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x01' 
function='0x0'/>
      </controller>
      <controller type='pci' index='2' model='pci-bridge'>
        <model name='pci-bridge'/>
        <target chassisNr='2'/>
        <address type='pci' domain='0x0000' bus='0x01' slot='0x01' 
function='0x0'/>
      </controller>
      <interface type='network'>
        <mac address='52:54:00:42:7e:02'/>
        <source network='default'/>
        <model type='virtio'/>
        <address type='virtio-mmio'/>
      </interface>
      <serial type='pty'>
        <target port='0'/>
      </serial>
      <console type='pty'>
        <target type='serial' port='0'/>
      </console>
    </devices>
  </domain>

  5. $ virsh start legal-coyote
  error: Failed to start domain legal-coyote
  error: internal error: cannot load AppArmor profile 
'libvirt-9728b707-1f47-4cd7-a4ca-6eddf5d98d04'

  6. Checking dmesg...
  [  726.425389] virbr0: $ lsb_release -a
  No LSB modules are available.
  Distributor ID:       Ubuntu
  Description:  Ubuntu 16.04.4 LTS
  Release:      16.04
  Codename:     xenialport 1(virbr0-nic) entered listening state
  [  726.425419] virbr0: port 1(virbr0-nic) entered listening state
  [  727.959553] virbr0: port 1(virbr0-nic) entered disabled state
  [  896.933127] audit: type=1400 audit(1526946784.127:18): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9083/auxv" pid=9083 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
  [  896.933169] audit: type=1400 audit(1526946784.127:19): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9083/auxv" pid=9083 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
  [  896.933846] audit: type=1400 audit(1526946784.127:20): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9083/auxv" pid=9083 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
  [  896.933890] audit: type=1400 audit(1526946784.127:21): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9083/auxv" pid=9083 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
  [  896.937130] audit: type=1400 audit(1526946784.131:22): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/var/lib/libvirt/maas-images/796e5e0f-ab62-4e44-8189-bbc754635e0b" 
pid=9083 comm="virt-aa-helper" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  [  943.086388] audit: type=1400 audit(1526946830.280:23): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9174/auxv" pid=9174 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
  [  943.086429] audit: type=1400 audit(1526946830.280:24): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9174/auxv" pid=9174 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
  [  943.087171] audit: type=1400 audit(1526946830.280:25): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9174/auxv" pid=9174 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
  [  943.087214] audit: type=1400 audit(1526946830.280:26): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/proc/9174/auxv" pid=9174 comm="virt-aa-helper" requested_mask="r" 
denied_mask="r" fsuid=0 ouid=0
  [  943.090417] audit: type=1400 audit(1526946830.284:27): apparmor="DENIED" 
operation="open" profile="/usr/lib/libvirt/virt-aa-helper" 
name="/var/lib/libvirt/maas-images/796e5e0f-ab62-4e44-8189-bbc754635e0b" 
pid=9174 comm="virt-aa-helper" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

  7. $ dpkg -l | grep libvirt
  ii  libvirt-bin                      1.3.1-1ubuntu10.23                       
  arm64        programs for the libvirt library
  ii  libvirt0:arm64                   1.3.1-1ubuntu10.23                       
  arm64        library for interfacing with different virtualization systems

  8. $ dpkg -l | grep qemu
  ii  ipxe-qemu                        1.0.0+git-20150424.a25a16d-1ubuntu1.2    
  all          PXE boot firmware - ROM images for qemu
  ii  qemu-block-extra:arm64           1:2.5+dfsg-5ubuntu10.29                  
  arm64        extra block backend modules for qemu-system and qemu-utils
  ii  qemu-efi                         0~20160408.ffea0a2c-2                    
  all          UEFI firmware for virtual machines
  ii  qemu-system-arm                  1:2.5+dfsg-5ubuntu10.29                  
  arm64        QEMU full system emulation binaries (arm)
  ii  qemu-system-common               1:2.5+dfsg-5ubuntu10.29                  
  arm64        QEMU full system emulation binaries (common files)
  ii  qemu-utils                       1:2.5+dfsg-5ubuntu10.29                  
  arm64        QEMU utilities

  9. $ dpkg -l | grep apparmor
  ii  apparmor                         2.10.95-0ubuntu2.9                       
  arm64        user-space parser utility for AppArmor
  ii  libapparmor-perl                 2.10.95-0ubuntu2.9                       
  arm64        AppArmor library Perl bindings
  ii  libapparmor1:arm64               2.10.95-0ubuntu2.9                       
  arm64        changehat AppArmor library

  10. $ lsb_release -a
  No LSB modules are available.
  Distributor ID:       Ubuntu
  Description:  Ubuntu 16.04.4 LTS
  Release:      16.04
  Codename:     xenial

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1772538/+subscriptions

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